BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 167 58.4%
2 United States 52 18.2%
3 Germany 34 11.9%
4 Canada 14 4.9%
5 Hong Kong 4 1.4%
6 Italy 3 1%
7 Macao 3 1%
8 Argentina 2 0.7%
9 Sweden 2 0.7%
10 Taiwan 2 0.7%
11 Russia 1 0.3%
12 Singapore 1 0.3%
13 Hungary 1 0.3%